Chemistry

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Empirical Formula Practice

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  • 1. Multiple Choice
    30 seconds
    1 pt
    You are given the following percentages: 40.05% S and 59.95% O. Find the empirical formula for these elements.
    SO
    SO2
    SO3
    SO4
  • 2. Multiple Choice
    30 seconds
    1 pt
    What is the empirical formula if you have 81.82% carbon and 18.18% hydrogen?
    C3H8
    CH4
    C2H2
    C4H10
  • 3. Multiple Choice
    30 seconds
    1 pt
    Given the following: 42.07% Na, 18.89% P, and 39.04% O, determine the empirical formula.
    NaPO2
    Na2PO3
    Na3PO4
    NaPO4
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